4 x 5/8 x 1/8 HSS Planer Blades - Jet JJ-4, Atlas, Boice, Craftsman - Set of 3. Jet JJ-4, Atlas, Boice, Craftsman - Set of 3. Long Wearing M-2 High Speed Steel (HSS) Ultra sharp edge for an extra smooth cut Same day shippping Free technical support (800) 533-7117